
SiPearl designs and delivers high-performance, energy-efficient processors optimized for supercomputing, AI, and large-scale data centers. The company is a European fabless semiconductor designer;β¦

SiPearl designs and delivers high-performance, energy-efficient processors optimized for supercomputing, AI, and large-scale data centers. The company is a European fabless semiconductor designer;β¦
Founded: 2019
Headquarters: Maisons-Laffitte, Γle-de-France, France
Product focus: High-performance, energy-efficient Arm-based CPUs for supercomputing and AI (Rhea1)
Flagship customer / contract: EuroHPC JUPITER exascale supercomputer
Recent funding: β¬130M Series A final close (July 2025)
Sovereign high-performance computing and AI processors for supercomputing, defense, security, health, energy and climate domains.
2019
Semiconductor Manufacturing
β¬130,000,000
Final closing of a β¬130M Series A including participation from Cathay Venture, EIC Fund and France 2030 as described in company communications.
β¬90,000,000
Announced first closing of a Series A to launch Rhea1.
β¬7,400,000
Early seed funding from the EU Horizon 2020 programme.
βIncludes strategic and public investors such as Arm Holdings, Cathay Venture, European Innovation Council/EIC Fund, France 2030 and Evidenβ
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At SiPearl, we are constantly looking for new talent! π If you are passionate about your profession and wish to grow in a stimulating environment, donβt hesitate to send us your spontaneous application.
We are open to all applications and will carefully consider each profile.
Join us to help create Rhea, the "Made in Europe" microprocessor that will be the technological heart of European supercomputers, and develop your skills within a fast-growing company.
π»
Who are we? Founded in 2019 with the support of the European Union πͺπΊ, SiPearl embodies Europe's dream of mastering the technological heart of its supercomputers: the microprocessor.
SiPearl is developing Rhea, the high-performance, low-power European microprocessor dedicated to supercomputing and AI.
This new generation of microprocessors will initially target the EuroHPC ecosystem, which is deploying world-class high-performance computing infrastructures in Europe to tackle major challenges in medical research, artificial intelligence, security, energy management, and climate with a reduced carbon footprint.
SiPearl works closely with its 30 partners from the European Processor Initiative (EPI) consortium β major names from the scientific community, high-performance computing centers, and industry β who are its stakeholders, future clients, and end users.
SiPearl Employs Over 190 People In France (Maisons-Laffitte, Grenoble, Massy, Sophia Antipolis),
Spain (Barcelona),
Italy (Bologna).
Are you curious to learn more about us?
At SiPearl, we are committed to building a diverse and inclusive workplace that thrives on the strength of varied perspectives and backgrounds. We recruit talent based on merit, experience, and alignment with the goals and values of our company.
SiPearl is building Rhea , the high-performance, low-power European microprocessor dedicated to supercomputing and AI inference.
This new generation of microprocessors will first target EuroHPC Joint Undertaking ecosystem , which is deploying world-class supercomputing infrastructures in Europe for solving major challenges in medical research, artificial intelligence, security, energy management and climate with a reduced carbon footprint. π±
SiPearl is working in close collaboration with its 30 partners from the European Processor Initiative (EPI) consortium - leading names from the scientific community, supercomputing centers and industry - which are its stakeholders, future clients and end-users.
SiPearl Employs More Than 200 People In
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